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  1. %i[a b c d e].each_cons 2  do |(prev, nxt)|
  2.   p [prev, nxt]
  3. end
Success #stdin #stdout 0s 28680KB
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stdin
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Standard input is empty
stdout
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[:a, :b]
[:b, :c]
[:c, :d]
[:d, :e]
https://ideone.com/dogXO2
language:
Ruby (ruby 2.5.5)
created:
6 years ago
visibility:
public

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